Remove allowSelfSigned() method.

This method is no longer needed as the low level socket understands the
`ssl_*` options now.

Refs #7496

lib/Cake/Network/CakeSocket.php

@@ -446,16 +446,4 @@ public function enableCrypto($type, $clientOrServer = 'client', $enable = true)
 		$this->setLastError(null, $errorMessage);
 		throw new SocketException($errorMessage);
 	}
-
-/**
- * Accept Self-signed certificate on current stream socket
- *
- * @return bool True on success
- * @link http://php.net/manual/en/context.ssl.php About the 'allow_self_signed' option.
- * @see stream_context_set_option
- */
-	public function allowSelfSigned() {
-		return stream_context_set_option($this->connection, 'ssl', 'allow_self_signed', true);
-	}
 }
-

lib/Cake/Network/Email/SmtpTransport.php

@@ -169,9 +169,6 @@ protected function _connect() {
 			$this->_smtpSend("EHLO {$host}", '250');
 			if ($this->_config['tls']) {
 				$this->_smtpSend("STARTTLS", '220');
-				if ($this->_config['ssl_allow_self_signed']) {
-					$this->_socket->allowSelfSigned();
-				}
 				$this->_socket->enableCrypto('tls');
 				$this->_smtpSend("EHLO {$host}", '250');
 			}

lib/Cake/Test/Case/Network/CakeSocketTest.php

@@ -349,18 +349,6 @@ public function testEnableCryptoEnableStatus() {
 		$this->assertTrue($this->Socket->encrypted);
 	}
 
-/**
- * testEnableCryptoSelfSigned
- *
- * @return void
- */
-	public function testEnableCryptoSelfSigned() {
-		$this->_connectSocketToSslTls();
-		$this->assertTrue($this->Socket->allowSelfSigned());
-		$this->assertTrue($this->Socket->enableCrypto('tls', 'client'));
-		$this->Socket->disconnect();
-	}
-
 /**
  * test getting the context for a socket.
  *